The multicharged ion plasma under external laser pulse: calculation of its key parameters

Autor: Timshina Mariia, Kalinin Nikolai
Jazyk: English<br />Russian
Rok vydání: 2022
Předmět:
Zdroj: St. Petersburg Polytechnical University Journal: Physics and Mathematics, Vol 15, Iss 4 (2022)
Druh dokumentu: article
ISSN: 2405-7223
78837685
DOI: 10.18721/JPM.15403
Popis: The paper presents a numerical study of laser radiation interaction with cylindrical plasma medium. The model has been described in detail. Non-equilibrium sodium ions were chosen as the active medium and a CO2-laser as an external irradiator. The calculations used the one-dimensional two-temperature single-fluid radiative-hydrodynamic approximation taking into account the non-equilibrium ionic composition and the radiation absorption by plasma due to the inverse bremsstrahlung effect. In the calculations, the used laser pulse characteristics belonged to the range well-studied experimentally; e.g. the intensity of the incident laser radiation was about 100 TW/cm^2. The performed calculations were aimed at the development of research on the creation of active laser media based on the multicharged ions’ transitions working in the extreme UV and soft X-ray bands.
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